I do. I've got tons of the things.
Old Atari consoles, NES, SNES, Genesis, an imported Saturn, various other things... Hell, there's cartridges for the 2600 just scattered randomly all over the place here (I aint exactly the organized type), as they get used frequently with the 7800 unit that sits next to the keyboard on my overly crowded weird table thing that passes for a "desk". Currently Jr. Pac-Man has been getting alot of play time, a favorite of mine which seems to mostly consist of me screaming incoherently at the screen.
Also very into old PC games as well.... some definite favorites among those. Ahh, the days of CGI graphics. Cyan, magenta, white, and black, or red, orange, green, and black. Pretty sure both color schemes are permanently burned into my memory.
I have an Odyssey 2 with a big pile of games, but the damn thing never actually worked. Got it at a garage sale years back. Even has all the boxes and manuals and accessories and everything. I really need to replace the main unit (or whatever piece is the faulty bit, might be the power adaptor actually) so I can play the mountain of games that came with it. I'd also like to get a Vectrex, and a Commodore 64, which is something I've always wanted. Actually I only havent bought these things yet simply out of laziness, not fond of dealing with Ebay and such. I should really just go ahead and order some of these, there's really no reason other than that not to.
Nice to meet someone else on here that enjoys this sort of thing. There's a couple of others on the forums here as well, but not many.
EDIT: Ah yes, emulation, I forgot about that. 6500+ arcade roms, all with complete overlays and extras like cabinet photos, or images of their original flyers. Bloody excellent rom archive, I went to alot of trouble to get my hands on it. I'll use other emulators at times as well, like an NES one or something, but it's mostly the grand Mame archive that takes the cake for me.